<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>日期格式化</title>
</head>
<body>
    <script>
      Date.prototype.format = function (fmt) { //author: meizz  
    var o = {  
      "M+": this.getMonth() + 1, //月份  
      "d+": this.getDate(), //日  
      "h+": this.getHours(), //小时  
      "m+": this.getMinutes(), //分  
      "s+": this.getSeconds(), //秒    
      "S":  this.getMilliseconds() //毫秒  
    };  
    if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));  
    for (var k in o)  
      if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));  
    return fmt;  
  }  
  var timel =new Date().format("yyyy年-MM月-dd日 hh时:mm分:ss秒");  
  alert(timel) 
    </script>
</body>
</html>